The very few specimens that are now offered to the world were procured as leisure and opportunity offered; but many interesting and extremely curious subjects were in fact obliged to be left behind from want of room, and from our not possessing apparatus for collecting and preserving them.
A botanical collector for the Royal Garden, Mr.Allan Cunningham, was attached to the expedition; and this gentleman did not fail to make a very extensive and valuable collection in his department, the whole of which is preserved at Kew.
In making out the Appendix, every species brought home (excepting three or four fishes) has been mentioned, for the sake of furnishing materials for the students of Geographical Zoology.

The distribution of animals is a branch of study that has been very much neglected, which is to be lamented, as it appears likely to offer a very great assistance to the systematic Physiologist; and for this reason the species found at the Isle of France have been added to the list.
For the catalogue and descriptions of the quadrupeds, reptiles, and shells, I am under obligation to Mr.J.E.Gray, of the British Museum.
Mr.Vigors has kindly assisted me with the use of his collection, and his valuable advice with respect to the few specimens of birds that were preserved; and Mr.W.S.MacLeay has furnished me with a very valuable description of my entomological collection.

I am also indebted to Mr.
Cunningham for his remarks upon the botany of the country; to Mr.Brown, for his description of a new tree from King George the Third's Sound; and lastly to Dr.Fitton, for his kindness in drawing up for me a very interesting geological notice from the specimens that have been presented to the Geological Society of London, of which he is one of the most active and scientific members.
...
VERTEBRATA.
MAMMALIA.
BY JOHN EDWARD GRAY, ESQUIRE, M.G.S., ETC.
1.

Pteropus edwardsii, Desm.Mamm.

109.
Madagascar Bat, Edwards' Birds, t.